package utilClass;


public class ListNode {
    public int val;
    public ListNode next;
    public ListNode() {}
    public ListNode(int val) { this.val = val; }
    public ListNode(int val, ListNode next) { this.val = val; this.next = next; }

    @Override
    public String toString() {
        String result = "";
        ListNode temp = this;
        while (true){
            result += temp.val;
            if (temp.next!=null){
                result += " -> ";
                temp = temp.next;
            }else {
                break;
            }
        }
        return result;
    }
}
